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Mechanical Requirements • • of <br /> 2021 WSEC Requirements for Commercial Buildings including Group R2,R3&R4 over 3 stories&all R1 -- Administered by @2024 NEEA,All rights reserved <br /> The following information is necessary to check a mechanical permit application for compliance with the mechanical systems and equipment requirements in the <br /> Washington State Energy Code,Commercial Provisions. <br /> For questions about this report,contact WSEC Commercial Technical Support at 360-539-5300 or via email at com.techsupport@waenergycodes.com <br /> C403.12, Controls for high For zones> 150 sf with high occupant density <br /> Item 6 occupant density (>_25 people/1000 sf),indicate DCV control <br /> spaces that resets ventilation setpoint based on <br /> measured CO2;also indicate occupancy <br /> sensor control that automatically reduces <br /> minimum ventilation to zero and sets back <br /> room heating and cooling setpoints by>_5°F <br /> when space in unoccupied <br /> C403.12, High efficiency Indicate which system performance option is <br /> Item 7 system option applied-high efficiency DX cooling and heat <br /> pump or high efficiency gas heating;or <br /> heating coils served by a high efficiency <br /> heating water plant;or cooling coils served by <br /> high efficiency chilled water plant <br /> C403.12, High efficiency If complying via high efficiency DX:Indicate <br /> Item 7 system option full load and part load rated cooling efficiency <br /> exceeds WSEC listed efficiency by at least <br /> 15%;if heating is supplied by a gas-fired <br /> furnace,indicate thermal efficiency(Et)is>_ <br /> 90%;if system is a heat pump,indicate <br /> heating efficiency(HSPF or COP)exceeds <br /> WSEC listed efficiency by at least 10%; <br /> control of cooling and heating coil output shall <br /> be configured with a minimum of 2-stages or <br /> modulating <br /> C403.12, High efficiency If complying via high efficiency heating water <br /> Item 7 system option plant:Indicate hydronic heating coils are <br /> served by a heating water system with either <br /> gas-fired boiler(s)with thermal efficiency <br /> (Et)>92%,air-to-water heat pumps,or heat <br /> recovery chillers;indicate hydronic heating <br /> coils are sized per a maximum 120°F entering <br /> water temperature during peak demand <br /> C403.12, High efficiency If complying via high efficiency chilled water <br /> Item 7 system option plant:Indicate cooling coils are served by <br /> chillers with rated IPLV efficiency that <br /> exceeds WSEC listed IPLV by at least 25% <br /> per Table C403.3.2(7)(note water-cooled <br /> IPLV is max,all others are min);indicate <br /> smallest chiller or compressor in plant is<_ <br /> 20%of the total plant capacity,or provide <br /> thermal storage sized for>_20%of total plant <br /> capacity <br /> C403.12, Fault detection and Indicate DDC system includes automatic fault <br /> Item 8 diagnostics detection and diagnostics(FDD)configured <br /> to monitor operation and provide fault <br /> reporting of all required parameters for all <br /> HPVAV single-zone air systems <br /> EXTERIOR HEATING SYSTEMS <br /> C403.11.1 Heating outside a Indicate systems providing hearing in non- <br /> building enclosed outdoor occupied spaces are radiant <br /> systems <br /> Page 30132 <br />